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Basic Troubleshooting
If you find exceptions when operating the mobile phone, restore the factory settings and then refer to the following table to solve the problem.
If the problem persists, contact the distributor or service provider.
Fault Cause Solution
SIM card error
The SIM card is damaged. Contact your network service provider
The SIM card is not in position. Check the SIM card
The metal face of the SIM card is polluted. Clean the SIM card with a clean cloth
Poor received signal
quality
Signals are obstructed. For instance, radio
waves cannot be effectively transmitted
nearby a high building or in a basement.
Move to a place where signals can be effectively transmitted
Line congestions occur when you use the
mobile phone in high-traffic hours
Avoid using the mobile phone in high-traffic hours
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